It has now been a decade since React revolutionized
frontend GUI programming with ideas from functional
programming. After ten years, however, the promise of simple
program logic for complex apps is still not fulfilled. State
management remains an unsolved problem. In this talk I propose
that we take to functional programming again to escape this
misery. We analyze code “in its transient nature not less than
its momentary existence” so that at the end of our journey we
find lenses and stores and true lossless
composability.